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MethodExecutor.javaAPI DocGlassfish v2 API8368Fri May 04 22:36:10 BST 2007com.sun.gjc.util

MethodExecutor

public class MethodExecutor extends Object implements Serializable
Execute the methods based on the parameters.
version
1.0, 02/07/23
author
Binod P.G

Fields Summary
private static Logger
_logger
private boolean
debug
private static com.sun.enterprise.util.i18n.StringManager
sm
Constructors Summary
Methods Summary
private java.lang.ObjectconvertType(java.lang.Class type, java.lang.String parameter)
Converts the type from String to the Class type.

throws
ResourceException, in case of the mismatch of parameter values or a security violation.
param
type Class name to which the conversion is required.
param
parameter String value to be converted.
return
Converted value.

        try {
            String typeName = type.getName();
            if (typeName.equals("java.lang.String") || typeName.equals("java.lang.Object")) {
                return parameter;
            }

            if (typeName.equals("int") || typeName.equals("java.lang.Integer")) {
                return new Integer(parameter);
            }

            if (typeName.equals("short") || typeName.equals("java.lang.Short")) {
                return new Short(parameter);
            }

            if (typeName.equals("byte") || typeName.equals("java.lang.Byte")) {
                return new Byte(parameter);
            }

            if (typeName.equals("long") || typeName.equals("java.lang.Long")) {
                return new Long(parameter);
            }

            if (typeName.equals("float") || typeName.equals("java.lang.Float")) {
                return new Float(parameter);
            }

            if (typeName.equals("double") || typeName.equals("java.lang.Double")) {
                return new Double(parameter);
            }

            if (typeName.equals("java.math.BigDecimal")) {
                return new java.math.BigDecimal(parameter);
            }

            if (typeName.equals("java.math.BigInteger")) {
                return new java.math.BigInteger(parameter);
            }

            if (typeName.equals("boolean") || typeName.equals("java.lang.Boolean")) {
                return Boolean.valueOf(parameter);
            }

            return parameter;
        } catch (NumberFormatException nfe) {
            _logger.log(Level.SEVERE, "jdbc.exc_nfe", parameter);
            String msg = sm.getString("me.invalid_param", parameter);
            throw new ResourceException(msg);
    	}
public voidrunJavaBeanMethod(java.lang.String value, java.lang.reflect.Method method, java.lang.Object obj)
Exceute a simple set Method.

throws
ResourceException, in case of the mismatch of parameter values or a security violation.
param
value Value to be set.
param
method Method object.
param
obj Object on which the method to be executed.


                                                                                    
              
        if (value == null || value.trim().equals("")) {
            return;
        }
        try {
            Class[] parameters = method.getParameterTypes();
            if (parameters.length == 1) {
                Object[] values = new Object[1];
                values[0] = convertType(parameters[0], value);
                method.invoke(obj, values);
            }
        } catch (IllegalAccessException iae) {
            _logger.log(Level.SEVERE, "jdbc.exc_jb_val", iae);
            String msg = sm.getString("me.access_denied", method.getName());
            throw new ResourceException(msg);
        } catch (IllegalArgumentException ie) {
            _logger.log(Level.SEVERE, "jdbc.exc_jb_val", ie);
            String msg = sm.getString("me.illegal_args", method.getName());
            throw new ResourceException(msg);
        } catch (InvocationTargetException ite) {
            _logger.log(Level.SEVERE, "jdbc.exc_jb_val", ite);
            String msg = sm.getString("me.access_denied", method.getName());
            throw new ResourceException(msg);
        }
public voidrunMethod(java.lang.reflect.Method method, java.lang.Object obj, java.util.Vector values)
Executes the method.

throws
ResourceException, in case of the mismatch of parameter values or a security violation.
param
method Method object.
param
obj Object on which the method to be executed.
param
values Parameter values for executing the method.

        try {
            Class[] parameters = method.getParameterTypes();
            if (values.size() != parameters.length) {
                return;
            }
            Object[] actualValues = new Object[parameters.length];
            for (int i = 0; i < parameters.length; i++) {
                String val = (String) values.get(i);
                if (val.trim().equals("NULL")) {
                    actualValues[i] = null;
                } else {
                    actualValues[i] = convertType(parameters[i], val);
                }
            }
            method.invoke(obj, actualValues);
        } catch (IllegalAccessException iae) {
            _logger.log(Level.SEVERE, "jdbc.exc_jb_val", iae);
            String msg = sm.getString("me.access_denied", method.getName());
            throw new ResourceException(msg);
        } catch (IllegalArgumentException ie) {
            _logger.log(Level.SEVERE, "jdbc.exc_jb_val", ie);
            String msg = sm.getString("me.illegal_args", method.getName());
            throw new ResourceException(msg);
        } catch (InvocationTargetException ite) {
            _logger.log(Level.SEVERE, "jdbc.exc_jb_val", ite);
            String msg = sm.getString("me.access_denied", method.getName());
            throw new ResourceException(msg);
        }